CSEXCEL New Laptop Replacement Battery for Apple MacBook Pro 13" A1322 A1278 (Mid 2009, Mid 2010, Early and Late 2011, Mid 2012 Version) Grade A Cell,10.95V 6000mah/65.5wh Battery type: Rechargable Li-Polymer battery; Voltage:10.95V; Capacity: 6000mAh/65Wh; 6 Cell. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Operation time for standard batteries: Around 3.5 hours, the actual operation time will depend on how much electricity is required by the device and how you use it; About 500 recharge cycles over the life of the battery; CE-/FCC-/RoHS-Certified for safety. Compatibility: Made for Apple's 13 inch MacBook Pro [A1278] versions MB990LL/A, MB991LL/A, MC374LL/A, MC375LL/A, MC700LL/A, MC724LL/A, MD314LL/A, MD313LL/A, MD101LL/A, MD102LL/A (see compatible models). Package included: 1 X Laptop Battery,Two Free Screwdrivers. Warranty: 12 Months warranty, 30 days money return guarantee, 24 x 7 email support.